98 lines
3.5 KiB
JavaScript
98 lines
3.5 KiB
JavaScript
/*
|
|
* Copyright (C) 2021-2022 Yomichan Authors
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* This class controls the registration of accessibility handlers.
|
|
*/
|
|
class AccessibilityController {
|
|
/**
|
|
* Creates a new instance.
|
|
* @param {ScriptManager} scriptManager An instance of the `ScriptManager` class.
|
|
*/
|
|
constructor(scriptManager) {
|
|
this._scriptManager = scriptManager;
|
|
this._updateGoogleDocsAccessibilityToken = null;
|
|
this._updateGoogleDocsAccessibilityPromise = null;
|
|
this._forceGoogleDocsHtmlRenderingAny = false;
|
|
}
|
|
|
|
/**
|
|
* Updates the accessibility handlers.
|
|
* @param {object} fullOptions The full options object from the `Backend` instance.
|
|
* The value is treated as read-only and is not modified.
|
|
*/
|
|
async update(fullOptions) {
|
|
let forceGoogleDocsHtmlRenderingAny = false;
|
|
for (const {options} of fullOptions.profiles) {
|
|
if (options.accessibility.forceGoogleDocsHtmlRendering) {
|
|
forceGoogleDocsHtmlRenderingAny = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
await this._updateGoogleDocsAccessibility(forceGoogleDocsHtmlRenderingAny);
|
|
}
|
|
|
|
// Private
|
|
|
|
async _updateGoogleDocsAccessibility(forceGoogleDocsHtmlRenderingAny) {
|
|
// Reentrant token
|
|
const token = {};
|
|
this._updateGoogleDocsAccessibilityToken = token;
|
|
|
|
// Wait for previous
|
|
let promise = this._updateGoogleDocsAccessibilityPromise;
|
|
if (promise !== null) { await promise; }
|
|
|
|
// Reentrant check
|
|
if (this._updateGoogleDocsAccessibilityToken !== token) { return; }
|
|
|
|
// Update
|
|
promise = this._updateGoogleDocsAccessibilityInner(forceGoogleDocsHtmlRenderingAny);
|
|
this._updateGoogleDocsAccessibilityPromise = promise;
|
|
await promise;
|
|
this._updateGoogleDocsAccessibilityPromise = null;
|
|
}
|
|
|
|
async _updateGoogleDocsAccessibilityInner(forceGoogleDocsHtmlRenderingAny) {
|
|
if (this._forceGoogleDocsHtmlRenderingAny === forceGoogleDocsHtmlRenderingAny) { return; }
|
|
|
|
this._forceGoogleDocsHtmlRenderingAny = forceGoogleDocsHtmlRenderingAny;
|
|
|
|
const id = 'googleDocsAccessibility';
|
|
try {
|
|
if (forceGoogleDocsHtmlRenderingAny) {
|
|
if (await this._scriptManager.isContentScriptRegistered(id)) { return; }
|
|
const details = {
|
|
allFrames: true,
|
|
matchAboutBlank: true,
|
|
matches: ['*://docs.google.com/*'],
|
|
urlMatches: '^[^:]*://docs.google.com/[\\w\\W]*$',
|
|
runAt: 'document_start',
|
|
js: ['js/accessibility/google-docs.js']
|
|
};
|
|
await this._scriptManager.registerContentScript(id, details);
|
|
} else {
|
|
await this._scriptManager.unregisterContentScript(id);
|
|
}
|
|
} catch (e) {
|
|
log.error(e);
|
|
}
|
|
}
|
|
}
|
|
|